Moving Money From a Roth IRA Into Your 401(k)

Yes, you can roll a Roth IRA into a 401(k), but only under specific conditions

You can move money from a Roth IRA into a 401(k), but your employer's plan has to permit it. Not all 401(k) plans allow what's called a "reverse rollover" or "Roth rollover," so the first step is asking your plan administrator whether yours does. If it does, you'll need to have been with your employer for at least a certain period (often 30 to 90 days, depending on the plan), and you'll move the money directly from your Roth IRA custodian to your 401(k) plan.

The process itself is straightforward once you confirm your plan allows it: you contact your Roth IRA custodian (your bank, brokerage, or investment firm), request a direct rollover to your 401(k), provide your 401(k) plan details, and the custodian sends the funds directly to your plan. You don't touch the money, so there's no tax withholding or 60-day important date to worry about.

Key Takeaways

Your 401(k) plan must explicitly permit Roth rollovers—contact your plan administrator or HR department to confirm yours does.
A direct rollover from your Roth IRA custodian to your 401(k) avoids taxes and penalties because the money never passes through your hands.
The money becomes a Roth 401(k) balance within your plan, keeping its tax-free growth status but now subject to 401(k) withdrawal rules.
You can roll over your entire Roth IRA balance or only part of it, depending on what your plan allows.

Why you might want to move a Roth IRA into a 401(k)

The main reason people do this is to consolidate retirement accounts in one place. If you have a Roth IRA and a 401(k) at the same employer, rolling the Roth into the 401(k) means one statement, one login, and one set of withdrawal rules to track instead of two.

Another reason is the required minimum distribution (RMD) rule. Once you reach age 73, you must withdraw a certain amount from your 401(k) each year—but Roth IRAs have no RMD requirement during your lifetime. If you roll your Roth IRA into a Roth 401(k), the RMD rule now applies to that money. This sounds like a drawback, but some people prefer the simplicity of one RMD calculation across all their retirement accounts, or they plan to leave the money to heirs anyway.

What happens to your money during the rollover

When you do a direct rollover, your Roth IRA custodian sends the funds straight to your 401(k) plan administrator. The money never lands in your personal bank account, so no taxes are withheld and no 60-day important date applies. This is the safest way to move the money.

Once the 401(k) plan receives the funds, they sit in a separate "Roth 401(k)" bucket within your plan. This bucket keeps the tax-free growth status of the original Roth IRA money, but it now follows 401(k) rules for withdrawals, loans, and required distributions. Your plan statement will show this balance separately from any traditional 401(k) money you may have.

The difference between a Roth IRA and a Roth 401(k) after the rollover

Before the rollover, your Roth IRA had no required minimum distributions, no loan provisions, and very flexible withdrawal rules. After the rollover into a Roth 401(k), the money is subject to 401(k) plan rules: you must take RMDs starting at age 73, you may be able to borrow against the balance (if your plan allows loans), and you cannot withdraw money penalty-free before age 59½ unless you meet an exception.

The tax-free growth and tax-free may have access to withdrawals remain the same—money you contributed to the Roth IRA comes out tax-free, and earnings come out tax-free if you've held Roth money for at least five years and are age 59½ or older. But the structure and rules around the money change to match your 401(k) plan's terms.

Partial rollovers and what you can leave behind

You don't have to roll over your entire Roth IRA. You can move part of it into your 401(k) and leave the rest in the IRA. This is useful if your plan has high fees, limited investment options, or if you want to keep some Roth money in an IRA for its flexibility.

If you have multiple Roth IRAs, the IRS treats them as one account for rollover purposes. If you roll over part of your total Roth balance, the pro-rata rule applies: you cannot separate contributions from earnings and roll only the contributions. The amount you roll over is a proportional mix of contributions and earnings based on your total Roth IRA balance across all accounts.

Steps to roll over your Roth IRA into your 401(k)

First, contact your 401(k) plan administrator or your HR department and ask whether your plan permits Roth rollovers. Get the answer in writing if possible, along with any forms or instructions the plan requires. Some plans have a specific form you must complete; others accept a straightforward written request.

Next, contact your Roth IRA custodian and tell them you want to do a direct rollover to your 401(k). Provide your 401(k) plan name, your account number, and the custodian's mailing address (your plan administrator will give you this). Request that the custodian send the funds directly to the plan—do not ask for a check made out to you, because that triggers a 60-day important date and potential withholding.

The custodian will process the rollover, usually within 5 to 10 business days. Your 401(k) plan will receive the funds and add them to your account. You'll see the balance on your next plan statement. Keep records of the rollover confirmation from both your IRA custodian and your 401(k) plan for your tax records.

What can go wrong and how to avoid it

The biggest mistake is asking your IRA custodian to send you a check instead of doing a direct rollover. If the money passes through your hands, you have 60 days to deposit it into the 401(k) or it becomes a taxable distribution. If you miss the important date, you owe income tax on the entire amount plus a 10% penalty if you're under 59½.

Another common issue is rolling money into a 401(k) plan that doesn't actually permit Roth rollovers. Always confirm with your plan administrator before you start the process. If you accidentally roll money into a plan that doesn't allow it, you may have to roll it back out, which creates extra paperwork and potential tax complications.

Some people also forget that the pro-rata rule applies if they have both a traditional IRA and a Roth IRA. If you roll part of your Roth IRA into a 401(k), the IRS calculates the rollover as a proportional mix of all your IRA balances (traditional and Roth combined). This can create unexpected tax consequences, so it's worth reviewing your total IRA picture before you start.

Frequently Asked Questions

Can I roll a Roth IRA into a traditional 401(k)?

No. If you roll a Roth IRA into a 401(k), it must go into a Roth 401(k) bucket within the plan. Rolling Roth money into a traditional 401(k) would trigger a taxable conversion. Your plan must have a Roth 401(k) option for this to work.

What if my employer's 401(k) doesn't allow Roth rollovers?

You cannot roll your Roth IRA into that plan. Your options are to keep the Roth IRA where it is, roll it into another employer's 401(k) that does permit Roth rollovers (if you change jobs), or leave it as a Roth IRA. There is no tax penalty for keeping it in the IRA.

Do I owe taxes when I roll a Roth IRA into a 401(k)?

No, not on the rollover itself. The money was already taxed when you contributed it to the Roth IRA, so moving it to a Roth 401(k) does not trigger a new tax bill. You only owe taxes on earnings when you withdraw them, and only if you don't meet the five-year and age 59½ rules.

Can I roll my Roth IRA back into an IRA after rolling it into a 401(k)?

Yes, you can roll a Roth 401(k) balance back into a Roth IRA, but only if you leave your job or if your plan permits in-service rollovers. Once you do roll it back, it becomes a Roth IRA again and the RMD rule no longer applies to that money.

How long does a Roth IRA to 401(k) rollover take?

A direct rollover typically takes 5 to 10 business days from the time your IRA custodian sends the funds. Your 401(k) plan will post the money to your account once it arrives. The entire process, from request to posting, usually takes two to three weeks.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.